Question
Following data is collected from $12$ observations of two mutually dependent variables $X$ and $Y$ : $\Sigma(x-40)=0 ; \Sigma(y-52)=0 ; \Sigma(x-40)^{2}=175 ; \Sigma(y-52)^{2}=$
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Answer
$\bar{y}=18+0.8 x$
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